WFC VIC

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my cores are UR64/40/20-3F3
I've changed coils so often since that post,I don't know where I'm at now.My latest coils resonate @ 30khz.
My coils are made to fit the window area of each side,can't make them any longer.
Don

Ok, thanks for the update

I'm thinking about winding choke1 (bifilar) and choke2 (bifilar).

The one generating the highest voltage to charge the cell?

1. Parallel- wound, series connected?
2. Parallel-wound, parallel connected?
3. Counter-wound, series connected?
4. Counter-wound, parallel connected?


br,
Webmug

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All my testing shows that seperate choke coils get higher voltage than bifiller.All wound in same direction,and all of their poles aligned in series around the core.
Don

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All my testing shows that seperate choke coils get higher voltage than bifiller.All wound in same direction,and all of their poles aligned in series around the core.
Don

Did you connect a bifilar choke like this: http://www.k3hkr.com/images/Baluns/BiFoWOUND.jpg and make two of them separate on a core?

br,
Webmug

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No I haven't,and I never see Stan do that method either.
Don

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No I haven't,and I never see Stan do that method either.
Don

Ok, we are talking only about the Resonance WFC system . It was only a thought.
So normal coil as a choke should work best?

Stan mentions DUAL RESONANT COILS/ BIFILAR SPIRAL WRAP COILS for the Injector VIC (580)
The Injector was the successor of the resonance WFC...I don't want to mix the two.

br,
Webmug

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Webmug I have tested (tested meaning measured the inductance of...) that winding pattern, it's the same as teslas bifilar as shown down below
(http://www.k3hkr.com/images/Baluns/BiFoWOUND.jpg)

If you measure only the Black coil at say, 1 H (random value), and then only the Red coil, will be 1 H as well, and then if you connect as shown, you will measure 4 H from A to B

so this can be used to increase inductance of a given coil for less turns, note that this considers A to B (red and black) as a single choke

This is worth more investigation. here is something i though of trying a few years ago, but still havent tried...
(http://img.photobucket.com/albums/v81/bigbuba/collected/Picture27-3.png)

for this you could have those two chokes next to each other on the same core or try different things...

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http://www.mkmagnetics.com/

@ donaldwfc
you documents collection is excellent
could you fix the broken document wfc news 1984 (8 pages) it stops downloading at 30.2 mb

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Could it be a different core material than Ferrite. That core material for VIC 3-23 looks way too shiny.
What about Supermalloy or Permalloy?

Magnetic permeability is much higher than Ferrite? Why use a flat core in the VIC 3-23?
Magnetic permeability of Ferrite is low with those dimensions.

Any ideas?

br,
Webmug